Driving mechanism for moving a steel wire used in the rod looms



June 21, 1955 ,c. DEWAELE 2,711,192

DRIVING MECHANISM FOR MOVINGA STEEL WIRE USED IN THE ROD LOOMS Filed June 7, 1950 2 Sheets-Sheet l BY w /M June' EI, 1955 DEWAELE 2,711,192

Filed June 7, 1950 INVENTOR- 'BYJ- 2 Sheets-Sheet 2 United States Patent DRIVING MECHANISM F OR MOVING A STEEL WIRE USED IN THE ROD LOOMS Charles Dewaeie, Harelbeke, Belgium Application June 7, 1950, Serial No. 166,626 Claims. (Cl. 139-40) The present invention relates to a pile-wire motion for looms comprising an oscillating wire-motion lever fulcrumed at its lower end on a journal while its upper end is connected to a crank having a Wrist-pin for operating of a pile-wire introducing and withdrawing device which effects a linear to and fro movement.

The object of this invention is to simplify the pile-wire motion and to reduce the weight of the parts of the same so as to lessen the power required to drive said motion.

To this end, in the pile-wire motion for looms according to the invention, the aforesaid crank is secured on an axle which is borne by the wire-motion lever and on which is fastened a planet-Wheel connected with a fixed wheel mounted on said journal.

According to an advantageous embodiment of the invention, the wire-motion lever is provided with a longi tudinal slot and is controlled by a rocking-lever bearing a sliding pin engaged in said slot to operate on said wiremotion lever, the said rocking-lever having one end fulcrumed on an eccentric pin projecting from a driving wheel and being swung round a fixed stud.

The invention is applicable to the weaving of pile fabrics such as carpets and velvet.

Other features and particularities of said invention will become apparent from the description of a pile-wire m:;-- tion, given hereinafter by way of nonlimiting example, with reference to the accompanying drawings.

Figure l is an elevation view of a pile-wire motion according to the invention, which shows various diagrammatized positions of said motion.

Figure 2 is an elevation view of another embodiment of the pile-wire motion.

In both figures, the same reference similar parts.

The pile-wire motion for looms comprises an osci'- lating wire-motion lever 11 which is fulcrumed at its lower end on a journal 12. The upper end of the wiremotion lever 11 is connected to a crank 16 having a wristpin 19 for operating of a pile-wire introducing and withdrawing device not represented. According to the i vention, the crank 16 is secured on an axle 14 which is borne by the wire-motion lever 11 and on which is fastened a planet-wheel 15 connected with a fixed wheel 17 mounted on the journal 12. Preferably, the planetwheel 15 and the fixed wheel 17 are toothed wheels which numerals denote are connected by a chain 18. When lever 11 is oscillated,.

a to and fro movement practically linear is imparted to the wrist-pin 19. Various. positions of the pile-wire motion are shown in dot and dash line, in Figure 1.

According to an advantageous embodiment of the i*- vention, the wire-motion lever 11 is provided with alongitudinal slot 13. It is controlled by a rocking-lever 3 which bears a sliding pin 9 engaged in the slot 13 tooperate said wire-motion lever 11. The rocking-lever 3 is swung round a fixed stud 6 and has one end 5 fulcrumcd ICC on an eccentric pin 2 projecting from a driving wheel I mounted on a shaft 4. The sliding pin 9 is thus moved along an ellipse 10. The wheel 1 is, for instance, a gear driven by another one not represented. According to Fig. 1, the rocking-lever 3 is provided at its other end 8 with a longitudinal slot 7 which engages the fixed stud 6. According to another embodiment (see Figure 2), the rocking-lever comprises a sliding bar 22, one end 23 of which is fulcrumed on the eccentric pin 2, and a rod 24. A lug member 25 rigidly mounted on one end of rod 24 is fulcrumed on the fixed stud 6. Sliding bar 22 has two guiding sleeves 20 and 21 for sliding engagement with rod 24 and carries sliding pin 9 engaging slot 13 of wire-motion lever 11. V v g It will be understood that the invention is not limited to the abovedescribed embodiments and that many modifications may be made without departing from the scope of the present patent application.

Other means may namely be used to impart a rotating movement to the toothed wheel'15, for instance by means ofa set of meshing gears. I

I claim: Y

l. A pile-wire motion for looms comprising a wire-motion lever, driving means imparting an oscillating movement to said wire-motion lever, a journal whereon the lower end of said lever is fulcrumed, a fixed wheel mounted on said journal, a crank whereto the upper end of said lever is connected, said crank having a wristpin for operating of a pile-wire introducing and withdrawing device, an axle' Whereon said crank is secured, said axlebeing borne by said wire-motion lever a planet-wheel fastened on said axle, and means operatively connecting said planet-wheel with the aforesaid fixed wheel. 7

2. A pile-wire motion as claimed in claim 1, wherein said planet-wheel'and fixed wheel are toothed wheels connected by a continuous chain.

3. A pile-wire motion for looms comprising an oscillating wire-motion lever, said lever being provided with a longitudinal slot, a journal whereon the lower end of said lever is fulcrumed, a fixed wheel mounted on said journal, a crank whereto the upper end of said lever is connected, said crank having a wristpin for operating of a pile-wire introducing and withdrawing device, an axle whereon said crank is secured, said axle being borne by said wire-motion lever, a planet-wheel fastened on said axle, means operatively connecting said planet-wheel with the aforesaidfixed wheel, a rocking-lever forcontrolling said wire-motion lever, said rocking-lever bearing a sliding pin engaged in said longitudinal slot to operate on said wire-motion lever, an eccentric pin whereon one end .of said rocking-lever is fulcrumed, a driving wheel carrying said eccentric pin, and a fixed stud around rocking-lever is swnng..

.4. A pile-wire motion as claimed in claim 3, wherein the said rocking-lever is provided at its other end with a longitudinal slot to engage said fixed stud.

5. A pile-wire motion as claimed in claim 3,'wherein said rocking-lever comprises a sliding bar and a rod engaging each other'in sliding relationship, and wherein one end of the sliding bar is fulcrurned on said eccentric pin while one end of said .rod swings around said fixed stud.

which said References Cited in the file of this patent UNITED STATES PATENTS Payne Oct. 7, 1941 

